I read the problem that the Maineye had with the left side whine. Mine is on the right side. Mine is 6 years old but the whine has been there for two. The mower has only 80 hours on it. After about 30 minutes the right side whines then maybe but not always it becomes somewhat unable to turn right. After it sits for 10 minutes or so the whine goes away until it's driven for a while. In the other post-Bertsmobile said to add oil but the manual says that only the S series have a service interval. How can I check or add oil? Are there any videos that show the Quest model service? I would like to see where a fan is located if there is one. Thanks